Once you decide what kinds of plants you want to grow, then you need to know the different parts involved in the grafting process. There are two main parts: the root and the scion. The rootstock is the part of the plant that will serve as your base for your new grafted plant. It will eventually become the root and support system, and it is on the bottom of your grafted plant. The top of the plant, which will eventually flower or bloom producing fruit, flowers, stems or leaves is called the scion. So as you prepare, you need the rootstock from a plant that is sturdy and will thrive. The top of the plant (the scion) should be the type of plant you want to produce (i.e. roses, tomatoes, avocado etc.)
To get started, prepare your rootstock. According to the experts at Better Homes and Gardens, “carefully make a 2-inch sloping diagonal cut through a stem about 6 inches above the ground. Next, make a 1/2-inch-deep cut straight down the stem, about a third of the way down your sloping cut.” Your root is now ready to be grafted. Then take your scion, and make a cut of a similar size to match the cut you just made on your root. The trick is that both parts of your plant should match in size and slope of the cut, so that they are more likely to properly become grafted together and become a part of the same flowering plant.